RS3BHE3_A/I Equivalent & Substitute Parts

Part Overview

The RS3BHE3_A/I is a general-purpose rectifier diode manufactured by Vishay General Semiconductor - Diodes Division. This surface mount device operates at 100 V DC reverse voltage with a 3 A average rectified current rating in a DO-214AB (SMC) package. The part is classified as Active product status and carries AEC-Q101 automotive qualification.

Substitute parts are necessary when the primary part number becomes unavailable due to inventory constraints, supply chain disruptions, or manufacturing discontinuation. Alternative equivalent diodes meeting identical electrical and mechanical specifications provide design continuity and production flexibility.

Key Parameters

Parameter	Value	Unit
Voltage - DC Reverse (Vr) (Max)	100	V
Current - Average Rectified (Io)	3	A
Voltage - Forward (Vf) (Max) @ If	1.3 V @ 2.5 A	V
Speed	Fast Recovery ≤ 500ns, > 200mA (Io)	—
Reverse Recovery Time (trr)	150	ns
Current - Reverse Leakage @ Vr	10	µA @ 100 V
Capacitance @ Vr, F	44	pF @ 4V, 1MHz
Package / Case	DO-214AB, SMC	—
Mounting Type	Surface Mount	—
Operating Temperature - Junction	-55 to 150	°C
RoHS Status	ROHS3 Compliant	—
Moisture Sensitivity Level (MSL)	1 (Unlimited)	—

Substitute Part Grouping Explanation

Substitution of the RS3BHE3_A/I is determined by strict equivalence across the following critical parameters:

Electrical Equivalence Requirements:

Voltage - DC Reverse (Vr) (Max): 100 V
Current - Average Rectified (Io): 3 A
Package / Case: DO-214AB, SMC
Mounting Type: Surface Mount
Operating Temperature - Junction: -55°C to 150°C
RoHS Status: ROHS3 Compliant
Moisture Sensitivity Level (MSL): 1 (Unlimited)

Acceptable Parameter Variations: Substitute parts may exhibit differences in forward voltage (Vf), reverse recovery time (trr), and capacitance within the fast recovery diode classification, provided all primary electrical ratings and package specifications remain identical. Packaging format (Tape & Reel, Cut Tape, or Digi-Reel) does not affect electrical equivalence but impacts procurement and assembly logistics.

Parameter Comparison

Parameter	RS3BHE3_A/I (Main)	RS3B-E3/57T	ES3B	ES3B-13-F	RS3B R7G	RS3B V7G
Manufacturer	Vishay General Semiconductor	Vishay General Semiconductor	Taiwan Semiconductor Corporation	Diodes Incorporated	Taiwan Semiconductor Corporation	Taiwan Semiconductor Corporation
Voltage - DC Reverse (Vr) (Max)	100 V	100 V	100 V	100 V	100 V	100 V
Current - Average Rectified (Io)	3 A	3 A	3 A	3 A	3 A	3 A
Voltage - Forward (Vf) (Max) @ If	1.3 V @ 2.5 A	1.3 V @ 2.5 A	950 mV @ 3 A	900 mV @ 3 A	1.3 V @ 3 A	1.3 V @ 3 A
Speed	Fast Recovery ≤ 500ns, > 200mA (Io)	Fast Recovery ≤ 500ns, > 200mA (Io)	Fast Recovery ≤ 500ns, > 200mA (Io)	Fast Recovery ≤ 500ns, > 200mA (Io)	Fast Recovery ≤ 500ns, > 200mA (Io)	Fast Recovery ≤ 500ns, > 200mA (Io)
Reverse Recovery Time (trr)	150 ns	150 ns	35 ns	25 ns	150 ns	150 ns
Current - Reverse Leakage @ Vr	10 µA @ 100 V	10 µA @ 100 V	10 µA @ 100 V	10 µA @ 100 V	10 µA @ 100 V	10 µA @ 100 V
Capacitance @ Vr, F	44 pF @ 4V, 1MHz	44 pF @ 4V, 1MHz	45 pF @ 4V, 1MHz	45 pF @ 4V, 1MHz	Not specified	Not specified
Package / Case	DO-214AB, SMC	DO-214AB, SMC	DO-214AB, SMC	DO-214AB, SMC	DO-214AB, SMC	DO-214AB, SMC
Mounting Type	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount
Operating Temperature - Junction	-55 to 150°C	-55 to 150°C	-55 to 150°C	-55 to 150°C	-55 to 150°C	-55 to 150°C
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)
Product Status	Active	Active	Active	Active	Discontinued at DiGi Electronics	Discontinued at DiGi Electronics
Packaging Format	Tape & Reel (TR)	Cut Tape (CT)	Not specified	Tape & Reel (TR)	Cut Tape (CT)	Cut Tape (CT) & Digi-Reel®

Engineering Selection Recommendations

Primary Substitutes (Active Product Status):

RS3B-E3/57T is a parametric equivalent manufactured by Vishay General Semiconductor with identical electrical specifications to the RS3BHE3_A/I. This part maintains the same reverse voltage, rectified current, forward voltage characteristics, and reverse recovery time. The primary difference is packaging format (Cut Tape versus Tape & Reel), which does not affect electrical performance. This substitute is suitable for direct replacement in production environments.

ES3B-13-F, manufactured by Diodes Incorporated, is an active product offering improved performance characteristics. This part exhibits lower forward voltage (900 mV @ 3 A versus 1.3 V @ 2.5 A) and faster reverse recovery time (25 ns versus 150 ns). These parameters represent performance enhancements that maintain full compatibility with the original design while reducing power dissipation and switching losses. ES3B-13-F is supplied in Tape & Reel format.

ES3B, manufactured by Taiwan Semiconductor Corporation, provides an alternative with similar performance improvements to ES3B-13-F. Forward voltage is specified at 950 mV @ 3 A with reverse recovery time of 35 ns. This part carries Active product status and is available in substantial inventory quantities.

Secondary Substitutes (Discontinued Product Status):

RS3B R7G and RS3B V7G are parametric equivalents with identical electrical specifications to the main part but carry Discontinued at DiGi Electronics status. These parts maintain 150 ns reverse recovery time and 1.3 V forward voltage characteristics. Use of these parts is limited to applications where existing inventory is available and future procurement is not required.

Compliance and Qualification:

All substitute parts maintain ROHS3 compliance, MSL 1 (Unlimited) moisture sensitivity rating, and identical operating temperature ranges (-55°C to 150°C). The main part carries AEC-Q101 automotive qualification; substitute parts should be evaluated for automotive qualification requirements in specific applications.

Frequently Asked Questions (FAQ)

Q: Can RS3B-E3/57T be used as a direct replacement for RS3BHE3_A/I?

A: Yes. RS3B-E3/57T is a parametric equivalent with identical voltage rating (100 V), current rating (3 A), forward voltage (1.3 V @ 2.5 A), reverse recovery time (150 ns), and reverse leakage current (10 µA @ 100 V). The difference in packaging format (Cut Tape versus Tape & Reel) does not affect electrical performance or circuit compatibility.

Q: What is the difference between ES3B-13-F and the original RS3BHE3_A/I?

A: ES3B-13-F maintains identical voltage and current ratings but exhibits lower forward voltage (900 mV @ 3 A) and faster reverse recovery time (25 ns). These represent performance improvements that reduce power dissipation and switching losses while maintaining full electrical compatibility with the original design.

Q: Are the discontinued parts RS3B R7G and RS3B V7G still usable?

A: RS3B R7G and RS3B V7G are electrically equivalent to the main part with identical specifications. However, these parts are marked as Discontinued at DiGi Electronics, indicating limited future availability. Use of these parts is appropriate only when existing inventory is available and no future procurement is planned.

Q: Does packaging format (Tape & Reel versus Cut Tape) affect circuit performance?

A: No. Packaging format affects only procurement, storage, and assembly logistics. Electrical performance and circuit compatibility are identical regardless of whether the part is supplied in Tape & Reel (TR), Cut Tape (CT), or Digi-Reel format.

Q: Are all substitute parts RoHS3 compliant?

A: Yes. All substitute parts listed carry ROHS3 compliance status identical to the main part RS3BHE3_A/I.

Q: What is the significance of the 150 ns reverse recovery time in RS3BHE3_A/I compared to 25-35 ns in ES3B variants?

A: Reverse recovery time (trr) determines the speed at which the diode transitions from conducting to blocking state. The 150 ns specification in RS3BHE3_A/I and RS3B-E3/57T represents standard fast recovery performance. ES3B and ES3B-13-F offer faster recovery (25-35 ns), which reduces switching losses and improves efficiency in high-frequency applications. Both specifications are within the fast recovery classification and are electrically compatible.

Q: Can ES3B be substituted for ES3B-13-F?

A: Both parts are manufactured by different suppliers (Taiwan Semiconductor Corporation versus Diodes Incorporated) but share identical voltage and current ratings. ES3B exhibits 35 ns reverse recovery time versus 25 ns for ES3B-13-F. Both are active products with equivalent electrical performance for the RS3BHE3_A/I substitution requirement.

Q: What inventory considerations apply to these substitute parts?

A: RS3BHE3_A/I has 765 pieces in stock. RS3B-E3/57T offers the highest inventory availability at 30,300 pieces. ES3B and ES3B-13-F each have approximately 10,000+ pieces available. RS3B R7G and RS3B V7G have limited inventory (1,218 and 2,111 pieces respectively) and discontinued status, making them unsuitable for new designs requiring long-term supply assurance.

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